Diaphragm-pump



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N. A, 'WAHTQLA. v

DIAPHRAGM PUMP.

'No. 598,830. Patented Feb. 8, 1898.

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NlTE STATES ATENT rrcn'.

NESTOR A. WVAHTOLA, OF IRONWOOD, MICHIGAN.

DIAPHRAGM-PUMP.

SPECIFICATION forming part of Letters Patent No. 598,830, dated February8, 1898.

Application filed August 26, 1896. Serial No. 604,022. (ModeL) To allwhom it may concern:

. cordance with my invention.

Be it known that I, Nnsron A. WAHTOLA, a citizen of the United States,and a resident of Ironwood, in the county of Gogebic and State ofMichigan, have invented certain new and useful Improvements inDiaphragm-Pumps; and I do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawings, which form a part ofthis specification.

My invention relates to diaphragm-pumps; and its object is to provide animproved construction of the same which shall possess superioradvantages with respect to efficiency in use.

The invention consists in the novel construction and combination ofparts, hereinafter fully described and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a pumpconstructed inac- Fig. 2 is a vertical longitudinal section of the pumptubes or barrels, the movable cups or sections, the partition, and thediaphragm on the line 00 m, Fig. 7. Fig. 3 is a perspective view lookingfrom the under side of the upper section of the partition. Fig. 4 is asimilar view looking from the upper side of the intermediate section.Fig. 5 is a similarview looking from the under side of the same. Fig. 6is a perspective View looking from the upper side of pipe intermediatethe stop-cock and air-chamber is provided with a nipple 6, with whichisconnected a hose 7. By turning this cock the water may be dischargedthrough the pipe 41 or forced through the hose, as desired.

Pivotally connected with lugs 8, secured to the upper pump tube orbarrel, is a yoke 9,

provided with a handle 10, and pivotally connected with the latter is arod 12, the lower end of which is secured to lugs 13 of avertically-movable cup or section 14. This section, which issemispherical in form, is provided with a central aperture through whichthe upper tube 1 passes. This cup or section is connected with asimilar, but inverted, section 14. by means of screw-bolts 15, whichpass through lugs or flanges 16 on said sections. This lower cup orsection is also formed with a central aperture through which the lowerpump-tube passes. These sections, where the tubes pass therethrough,areprovided with packing-boxes 17 to make tight joints.

The numeral 18 designates the lower section of a partition containingthe water passages and valves. This section consists of a circular platesecurely fixed to the upper end of the lower pump-tube 2 and is providedwith two apertures or openings 19 and 20.

The numeral 21 designates the central or intermediate portion or sectionof the partition, and the numeral 22 designates the upper section,which. is secured to the lower end of the upper pump-tube 1. These threesections are securely bolted together by bolts 23. The said centralsection on its under side is provided with an angular recess or channel24, forming a water-passage. passage is formed with an opening or port25, extending clear through the section. At the other end the saidpassage is formed with a port 26, which communicates at one end with apassage 27 on the upper side of the said section. This port is closed byan upwardly-opening valve 28, and said passage 27 is provided with aport19 which communicates with the opening or port 19 in the lowersection 18. The lower side of said central section is also formed with arecess or passage 29, having a port 30 at one end passing through saidsection. At the other end of this passage is a port or opening 31,communicating with an angular recess or passage 32. This port 31 isclosed by an upwardly-extending valve Set, and at the other end of saidpassage 32 is a port or opening 35, closed by a similar valve 36. Thislatter port 35 communicates with the opening 20 in the lower section 18.The upper section 22 is provided At one end this with a port or opening37, which communicates with the port 30 of the passage 29, and is alsoprovided with a port 38, which communicates with port of the angularpassage 24. \This port 38 is provided with an upwardly-opening valve 39.

The upper and lower pump-tubes communicate, respectively, with theangular passages in the upper and lower sides of the cen tral section ofthe partition.

The numeral 40 designates a cup-shaped diaphragm of leather or otherflexible material, the edge of which is confined between edges of themovable cups or sections and confined at the center between the upperand central sections of the partition and has openings thereincorresponding with the openings and passages in the said sections. Aleather washer 41 is interposed between the central and lower sections,also having openings corresponding with the ports and openings in saidsections.

The operation is as follows: The handle and yoke are moved up and down,causing the connected cups or sections to be reciprocated. On thedownstroke of said cups the .water will be drawn through the lower tubeinto the angular passage 24, and from thence through port 26 (valve 28opening) to the passage 27, and thence through port 19 to port 19 intothe lower cup 14. During this operation the water in the upper cup 14 isforced through ports 37 and 30 to passage 29, to port 31 and angularpassage 32, (valve 34 opening,) and from thence through the upper pipe 1to discharge. Upon the return or upward movement of the said cups thewater in the lower cup will be forced through port or opening 20 throughport 35 (valve 36 opening) to passage 32 to the upper pump-tube 1. Atthe same time water will be drawn up into the upper cup 14 throughangular passage 24, port 25, and port 38, the valve 39 opening.

From the above it will be seen that the pump is double-actin g, theWater being sucked up from the lower pump-tube and forced up through theupper tube at each up-and-down stroke of the reciprocating cups orsections.

Having thus fully described my invention, what I claim is 1. In adiaphragm-pump, the combination with the upper and lower stationarypumptubes, the partition comprising the upper and lower sectionssecured, respectively to said pump-tubes and the intermediate sectionconnected therewith, and said sections provided with ports, passages andvalves, substantially as described, of the vertically-movablesemicylindrical cups, through which said pumptubes pass, provided withannular flanges at their adjoining ends, the flexible diaphragm ofgreater diameter than said cups clamped between said flanges and saidupper and intermediate sections, and means for reciprocating said cupson the tubes, substantially as set forth.

2. In a diaphragm-pump of the character described, the combination withthe upper and lower pump-tubes, the vertically-reciprocating cups orsections, and the diaphragm, of the sectional partition comprisingthe'lower section secured to the lower pump-barrel having two ports, oropenings 19 and 20 therein, the intermediate section having an angularpassage 24, with which the lower pump-tube communicates, a port 25, aport 26, a passage 27 on its upper side, a port 19 communicating withport 19, a passage 29, port 30, port 31 communicating with an angularpassage 32 in the upper side, and the upper section having ports 3'7 and38, and the valves 28, 34, 36, and 39, substantially as described.

In testimony that I claim the foregoing as my own I have hereuntoaffixed my signature in presence of two witnesses.

NESTOR A. VVAHTOLA.

Witnesses:

BELMONT WAPLER, OURTIs BUCK.

